

Plus the network usage for people with data caps, ISPs who throttle you for any p2p traffic etc it’d be a mess. Not to mention torrents usually have a ‘ramp up’ time as they find and connect to peers, probably not what people used to and endless stream of autoplaying short-form videos would want.
Yeah, you’re talking about bitrate. A lot of the 4k content is encoded using more efficient codecs, but if it’s sourced from the streaming services the bitrate is so abysmal it’s usually a tossup between the 1080p or 4k stream. At least the 4k usually has hdr these days which is appreciable.